Compilare: main.cpp: In member function 'bool LongInt::operator==(LongInt)': main.cpp:86:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i <= nr.size(); i++) ~~^~~~~~~~~~~~ main.cpp: In member function 'bool LongInt::operator>(LongInt)': main.cpp:114:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < nr.size(); i++) ~~^~~~~~~~~~~ main.cpp:129:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < nr.size(); i++) ~~^~~~~~~~~~~ main.cpp: In member function 'LongInt LongInt::operator-(LongInt)': main.cpp:240:51: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(thisOne.nr[toDel] == 0 && toDel <= thisOne.nr.size() - 2) ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'LongInt LongInt::operator*(LongInt)': main.cpp:291:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < thisOne.nr.size(); i++) ~~^~~~~~~~~~~~~~~~~~~ main.cpp:294:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < other.nr.size(); j++) ~~^~~~~~~~~~~~~~~~~ main.cpp:296:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] int num = (newNr.size() > i+j ? newNr[i+j] : 0) + ~~~~~~~~~~~~~^~~~~ main.cpp:299:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(newNr.size() > i+j) ~~~~~~~~~~~~~^~~~~ main.cpp: In static member function 'static LongInt LongInt::divideBy2(LongInt)': main.cpp:327:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < num.nr.size(); i++) ~~^~~~~~~~~~~~~~~